Cotton-gin.



M. W. MARSDEN.

COTTON GIN.

APPLICATION FILED MAY I9. m5.

1 1 92,660. Patented July 25, 1916.

4 SHEETS-SHEET I.

M. W. MARSDEN.

COTTONGIN,

APPLICATION FILED MAY 19. 1915.

1 ,1 92,660.. Patented July 25, 1916.

4 SHEETS-SHEET 2.

III

M. WJMARSDEN.

conow'sm.

APPLICATION FILED MAY I9. 1915.

Patented July 25, 1916.

4 SHEETS-SHEET 3 llllllll wanna M. W. MAHSDEN.

COTTON GIN.

APPLICATION FILED MAY 19. 19:5.

1 ,1 92,660. a Patented July 25, 1916.

4 SHEETS-SHEET ms Mann/s '51:" cm. :mumumu. \usnmcmu. n. c.

MARK W. MARSDEN, OF PHILADELPHIA, PENNSYLVANIA.

COTTON-GIN.

Application filed May 19, 1915.

[a all whom it may concern:

Be it known that 1, MARK W. MARSDEN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Cotton-Grins, of which the following is a specification.

The prior art is constituted of many types of gins, but the saw.gin has come to be recognized as the best exemplification of this class of apparatus and is the type in most common use today. Yet the saw gin presents to those skilled in the art defects which heretofore have not been overcome. Principal among these is the fact that it is wasteful and hence low in efficiency. This is due to the destructive action of the saws, which rip and tear the staple and at the same time leave considerable short staple adhering to the seeds so that further so called denuding operations are required to remove the short staple and lint from the seeds.

Objects of the present invention are to provide for rapidly and thoroughly ginrung cotton; to provide for ginning even to the extent of denuding the seeds; to provide a machine of simple construction, yet capable of treating a relatively large quantity of cotton without cutting, breaking or otherwise injuring the fiber; and to provide a comparatively compact gin, which is economical to run and is susceptible of being made of very large capacity.

Generally stated, the invention contemplates subjecting the seed cotton to the ac tion of confronting and comparatively flat ginning devices, which exert an opposite pull on the cotton without liability oftear-' ing or breaking the fiber whereby it is repeatedly turned or rolled so as to expose all parts ofthe same to the action of the ginning devices until it is thoroughly divested of seed and other extraneous matter and is finally delivered from the machine in perfect condition.

Further stated, the invention embodies Specification of Letters Patent.

its rolling abutment.

Patented July 25, 1916.

Serial No. 29,155.

entangle the fibers and thus loosen and separate the seeds and dirt as distinguished from the ripping or tearing action of a saw gin.

More specifically stated, the invention embodies a pair of cooperating ginning aprons, means for relatively adjusting them, means for delivering cotton to the aprons, means for driving the aprons in opposite directions and if desired at relatively different speeds, stripping mechanism, and means for removing the ginned cotton from the aprons.

The nature, characteristic features and scope of the invention will more readily be understood from the following description and claims taken in connection with the ac companying drawings, forming a part hereof, wherein Figure 1 is a top view of a machine embodying features of my invention.- Fig. 2 is a vertical sectional View of the same. Fig. 3 is a fragmentary view in perspective of an apron and stripper showing the relative arrangement of the same. Fig. at is a vertical sectional view of a modified type of machine. Fig. 5 is a detail showing one method of securing the ginning teeth to the aprons. Fig. 6 is aperspective view of a preferred type of ginning teeth. Fig. 7 is a sectional view of a modification in which suction fines are provided to take care of the ginned cotton. Fig. 8 is an elevational view of the machine, more particularly showing the driving mechanism. Fig. 9 is a perspective view of one of the aprons and Fig. 10 is a perspective view showing the staggered arrangement of the opposed teeth.

Referring to the drawings, the numeral 5 designates a framework of suitable construction, which supports the various elements of the machine.

(Send 7 indicate endless beltsor aprons disposed somewhat out of the perpendicular and which are comparatively close together at the bottom or seed outlet end of the ma chine and which diverge at the top where they may extend well up to the seed cotton hopper 8 so as to form practically a prolongation of said hopper. The aprons 6 and 7 are so disposed and equipped that when operated as hereinafter described they con 'stitute devices for opening, combing or disentangling, cleaning, ginning and delinting the materal under treatment. The aprons areadapted and arranged to be driven in reverse directionsand, if desired, at different speeds relatively and they are adjustable with relation to each other. Each of said aprons is formed of canvas, leather, orother appropriate material on the underside of which are secured in any suitable way means such as the slats or bars 9, which range transversely of the aprons and are spaced apart to form intervals between them and serve to support the ginning teeth.

As shown in Fig.6, the preferred type of teeth is a slightly curved, tapered and pointed member 10 having a threadedstock 11, which penetrates the slat and apron and 1s retained by a nut 12 that is inset in the slat in order to constitute no obstruction. The,

provision of the slats is an effective way of securing precise adjustment or accurate alinement of the teethfor itis essential that the teeth be disposed uniformly; and the particular type of retaining means referred to is advantageous in the event it becomes necessary to remove and replace any one or more of the teeth. The slats or bars 9 are mutually spaced or have like intervals between them and constitute teeth or sprockets, which engage with upper and lower sprocket wheels or corrugated rollers 13 and thereby impart the desired movements to the aprons.

The apron supports or corrugated rollers 13 V are mounted inbearings 14% of well known design and construction and the nature of which is such as will enable them to be shifted so as to vary the degree of inclination of the aprons to regulate the feed. The

bearings 14 also permit the aprons and apron.

supports to be shifted so as to take up slack of the aprons it being desirable at all times to have the aprons as tightly stretched as possible. The teeth carrying slats or sprockets may also engage toothed idlers or rolling abutments 15, which when. present operate to maintain a flat or stretched condition of the respective aprons particularly on the hopper or cottonward side. Otherwise stated, the provision of the idlers operatesto prevent deformation of the aprons so that the alinement of the ginning devices is preserved and they areheld well up to their work. Theidlers are mounted in adjustable bearings 16 and may be shifted in response to adjustments of the aprons through the medium of hand wheels 17 The apron 6 is arranged to be driven in a downward direction and its teeth on the down side are directed downwardly, which is the reverse of the teeth on the upwardly driven apron 7 Thus-in passing the upper,

sprocket roller the apron 6 operates to pull cotton from the hopper 8 and in this respect it may be termed a selffeeder. The aprons with relation to their teeth are out of alinement, see Fig. 10, so that the teeth are enabled to pass each other freely. Each apron cooperates with a ginning rib, consisting as shown in Fig. 3 of a comb-like doctor or member 18 curved to conform to the turns or take-off ends of the aprons and with its tines 19 so disposed as to permit the free'passage between them of the apron teeth. The gin- 'ning ribs are located, respectively, at the bottom and top of aprons 6 and 7.,

In practice, cotton is delivered to the V shape space between the aprons where through the action of the reversely traveling aprons it is subjected to pulling in opposite directions so as to be opened up, freed from leaves and dirt, and finally through the intervention of the ginning ribs liberated from the seeds, which latter together with foreign substances are discharged through a seed outlet 20. The ginned cotton passes to adjustable rotary dofiing or brush cylinders 21, one for each apron,.and these devices operate to relieve the aprons of. the ginned cotton and to deliver it in the form of a bat onto endlessbelts or, conveyers 22. To aid in the bat formation any suitable condensing means may be employed, for example the condensing rolls 23. The fact that. the aprons are mutually opposed or are driven in opposite directions and at variable speeds greatly facilitates the open-'- ing up or fiber straightening and loosening process as well as theginning'and cleaning process; It is not essential in all cases'that the aprons be driven at relatively different speeds and the operation of the machine with respect to this as well as the spacing, of the aprons or the adjustment of their angle of inclination will be governed to some extent by'the condition of or the grade of cotton to be ginned. v

In Fig. 2, theupwardly traveling apron 7 is almost perpendicular, and the brush or take-off cylinders 21 are located in proximity one with the top of apron 7 and the other with the bottom ofapron G. In Fig. 4: the angle of inclination is substantially alike and both brush cylinders are located at'the top. The seeds and dirt are directed to a showsan arrangementin which an endless To insure a unifornrand conroll of apron 6. Obviously a variation in.

the sizes of these gears will provide for the desired differential speed of the aprons.

From the last named roll the feed devices are operated by a chain drive 34 and crossed belt 35. The brush cylinder of apron 6 1s driven by a cross belt 36 and in turn drives the con- The brush cylinder of apron 7 is.

veyer 22. driven bya crossed belt 37 and in turn drives its complemental conveyer. For balancing purposes the lower roll of apron 7 is pro-' vided with a flywheel 38.

The aprons, ginning ribs and other operating parts are preferably housed within a casing 39 of any suitable construction such as will admit of ready accessibility to the va- IIOHS operating elements for inspection or repairs. In Fig. 8, the brush cylinders are equipped with hoods 40, having regulating dampers -11.

It will be obvious to those skilled in the art to which the invention relates that modifications may be made in details without departing from the spirit and scope of the in vention. Hence the same is not limited other than required by the state of the prior art.

Having described. the nature and objects of the invention, Iclaim:

1. In a machine of the type recited, the

' combination of confronting upwardly ranging aprons whereof each is equipped with ginning teeth, ginning members cooperating with the aprons, rotary supports for the aprons, and means for adjusting them to provide a V shape feed space between the aprons.

2. In a machine of the type recited, the combmatlon of V spaced confronting aprons,

ginning teeth detachably applied to the aprons, ginning members cooperating with "the aprons, apron supports, and means for driving them.

In. a machine of. the typerecited,the combination of confronting upwardly rang ing aprons whereof each is equipped with ginning devices, ginning members cooperating with the apron, rotary supports for the aprons, means for adjusting them to provide a V shape feed space between the aprons, and a feed hopper above the apron.

t. In a machine of the type recited, the combination of Vspaced confrontin aprons, ginning teeth detachably applied to the aprons, ginning members cooperating with the aprons, apron supports and means for driving them, and a feed hopper above the aprons and coextensive with the V space.

5. In a machine of the type recited, the combination of upstanding traveling aprons equipped with cooperative ginning teeth, means for feeding seed cotton downwardly between the aprons, a ginning rib at the take-off end of each apron, and doiling mechanism for the aprons.

6. In a machine of the type recited, the combination of V spaced confronting aprons equipped with cooperative ginning devices, the wide end constituting a seed cotton inlet and the other end constituting a seed outlet, means for driving the aprons in opposite directions, and take-off mechanism operatively disposed with respect to the aprons.

7. In a machine of the type recited, the combination of V spaced ginning aprons, means for effecting relative adjustments thereof to regulate the space, means for feeding seed cotton to the aprons, ginning members co-operating with the aprons, and means cooperating with the aprons for delivering the ginned cotton in the form of a hat.

8. In a machine of the type recited, the

combination of upstanding t 'aveling aprons equipped with cooperative ginning teeth, means for feeding seed cotton downwardly between the aprons, a curved ginning rib at the take-off end of each apron, and doiiing mechanism for the aprons.

9. In a machine of the type recited, the combination of upwardly diverging aprons provided with cooperative ginning devices, means for driving them, means for adjusting the aprons to regulate the space between them, and a feed hopper above and co-eX- tensive with the space between the aprons and capable of adapting itself to adjustments ofthe aprons.

10. In a machine of the type recited, the combination of upwardly diverging aprons provided with cooperativeginning devices, means for driving them in opposite directions, means for adjusting the aprons to regulate the space between them, and a feed hopper above and co-extensive with the space between the aprons and capable of adapting itself to adjustments of the aprons.

11. In a machine of the type recited, the combination of inclined ginning aprons, means for effecting relative adjustments thereof, means for supplying seed cotton to the aprons, ginning membe's cooperating with the apron, and means for removing the ginned cotton.

12. In a machine of the type recited, the combination of upwardly diverging aprons, means for effecting relative adj ustinents thereof, ginning teeth carried by the aprons, means for driving the aprons, means for feeding seed cotton to the aprons, a ginning rib at the takeoff end of each apron, and

means for removing the ginned cotton.

13. In a machine of the type recited, the I combination of upwardly diverging ginning aprons, means for driving them in opposite directions, means for feeding cotton downwardly between them, ginning ribs cooperating with the aprons, and means for removing the ginned cotton.- V

14. In a machine of the type recited,,the combination of 'V, spaced aprons equipped with cooperative ginning devices, means for adjusting the aprons to regulate said space, means for feeding seed cotton downwardly between the'aprons, and means for driving the aprons in opposite directions and at differential speeds.- 15. In a machine of the type recited, the

combination of a-pair of upwardly diverging ginning aprons, means for-driving them inopposite directions and one fasterthan the other, meansfor feeding seed cotton tothe space between the aprons,; a ginning rib for each apron, and means for effecting relative. ad ustments of the aprons and ginning ribs.- v 716. In a machine of the type recited, the

combination of a pair of traveling aprons.

equipped with ginning devices and whereof the arrangement is such that the aprons are close together at one end anddivei'gent at the other, and means for supplying cotton to the space between; the aprons.

17. In a machine of the type recited, th

combination of a pair of traveling aprons equipped with ginning devices and whereof the arrangement is such that the aprons are close togetherat one end with provision for said devices to clear each other and comparatively widely divergent at the other end, means for feeding cotton, to the wide end, and means for driving the aprons in opposite directions. I

18. In a machine of the type recited, the combination of a pair of traveling aprons equipped with reversely disposed ginning devices and whereof the arrangement is such" that theaprons are relatively close together at one end and widely divergent at theother end, and means for feeding cotton to the wide end.

19. In a machine of the type recited, the combination of a pair of relatively adjustable traveling aprons equipped with ginning devices and whereof the arrangement is such that the aprons are relatively close together at one end and divergent at the other, means for feeding cotton to the space between the aprons, andmeans for driving the aprons in opposite directions.

20. In a machine of the type recited, the

aooinbination with the ginning aprons and means for driving them, of means to I prevent deformation of the aprons.

21. In a machine of the type, recited, the

combination with the adjustable aprons and apron rolls, of rolling abutments intermediate the rolls and bearing'against the aprons toprevent deformation of the aprons, and means for adjusting them in response to adjustments of the aprons. V

22. In a machine of the type recited, the combination of a pair 'of upwardly'divergingginning aprons, means for driving'thcni in opposite directions and one faster than the other, seed cotton supply provisions at the upper ends of the aprons anda seed outlet provision at the lower ends thereof, a.

curved ginning rib for each apron, it and means for effecting relative adjustments of the'aprons and ginning ribs.

23. In a "machine of the type recited, the

combination with the ,apron supports, 7. of

aprons having slats designed to engage the apron supports and equ ppedwith ginning devices. 1

combination of confronting ginning aprons,

means for driving them in opposite directions, teeth detachably secured to the aprons, the opposed teeth being out of alineinent so as to clear each other, a ginning rib at the take-off end of each apron, and a valvedseed outlet for the aprons.

27. In a machine of the type recited, the combination of a pair 30f coiiperatinggin- .ning aprons, apron supports, ineans'for driving them in opposite. directions and one faster than the other, and a balance wheel on one of apron. V

7 28. In a machine of the type recited, the

combination of mated confronting ginning aprons equipped with reverselydisposed teeth, means for driving the aprons in opposite directions and at different relative. speeds, and independent ginning ribs and do-fling mechanism for each apron.

24. In a machine ofth'e'type recited, the "combinat on with the apron supports, of

aprons having slats designed to engagethe;

the supports of the. low speed 7 W 29. In a machine of the type recited, the" combination of mated ginning aprons equipped with reversely disposed teeth,

means for adjusting the aprons to regulate the feed, means for driving them in opposite directions, a curved ginning ribzat-the takeoff end of each apron, and means for adjusting the ribs in accordance with adjustments of the aprons. V a 30, In a machine of the type recited, the

combination of confronting ginning aprons In testimony whereof I affix my signature wlth an open space or feed end, a feed hop- 1n presence of two Witnesses.

per in oaerative relation therewith means for adju sting the aprons to regulate the MARK MARSDEN' 5 feed, means for driving them in opposite di- Witnesses:

rections, and independent ginning rib and HARRY A. HEGARTY,

dofling mechanism for each apron. JAs. A. RICHMOND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

